SETYOWATI, Dina Putri; YUMIATI, Yumiati; NOVIANTI, Idha. Development of learning tools using an open-ended approach with questions and higher-order thinking skills to improve students’ mathematical reasoning abilities. Gema Wiralodra, [S. l.], v. 15, n. 1, p. 634–642, 2024. DOI: 10.31943/gw.v15i1.696. Disponível em: https://gemawiralodra.unwir.ac.id/index.php/gemawiralodra/article/view/696. Acesso em: 4 nov. 2025.